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A175373 Partial sums of A175372. 1
1, 5, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 13, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Number of integer pairs (x,y) satisfying x^4+y^4 <= n, any -n <= x,y <=n.

LINKS

Table of n, a(n) for n=0..74.

EXAMPLE

a(6) = 9 counts (x,y) = (-1,-1), (-1,0), (-1,1), (0,-1), (0,0), (0,1), (1,-1), (1,0) and (1,1).

CROSSREFS

Cf. A057655, A175363.

Sequence in context: A020846 A180014 A105643 * A175363 A073168 A315121

Adjacent sequences:  A175370 A175371 A175372 * A175374 A175375 A175376

KEYWORD

nonn

AUTHOR

R. J. Mathar, Apr 24 2010

STATUS

approved

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Last modified December 3 20:53 EST 2020. Contains 338920 sequences. (Running on oeis4.)